NASA NTRS · 19660000016
Single projector accommodates slides of different size and format
Abstract
Projector with two adjustable external units accommodates slides of different size and format. One external unit is the holder for different size slides and includes mounting means for appropriate condensing lens and heat filters. The other unit is a turret lens assembly. The machine is easily adaptable to rear-screen and front-screen projection over various distances.
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Gates, G. M.. 1966-01-01. Single projector accommodates slides of different size and format. https://ntrs.nasa.gov/citations/19660000016
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